Camera optical lens including six lenses of ++−++− refractive powers

ABSTRACT

The present disclosure relates to an optical lens, in particular to a camera optical lens. The camera optical lens includes from an object side to an image side in sequence: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, the second lens has a positive refractive power, and the third lens has a negative refractive power, and the camera optical lens satisfies the following conditions: 1.50≤f1/f2≤5.00, and −10.00≤R3/R4≤−3.00, where f1 denotes a focal length of the first lens, f2 denotes a focal length of the second lens, R3 denotes a curvature radius of an object-side surface of the second lens, R4 denotes a curvature radius of an image-side surface of the second lens. The camera optical lens can obtain high imaging performance and a low TTL.

TECHNICAL FIELD

The present disclosure relates to an optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras, and camera devices such as monitors and PC lenses.

BACKGROUND

With an emergence of smart phones in recent years, a demand forminiature camera lens is gradually increasing, and a photosensitivedevice of a general camera lens is no other than a charge coupled device(CCD) or a complementary metal-oxide semiconductor (CMOS) sensor. Sincea progress of a semiconductor manufacturing technology makes a pixelsize of the photosensitive device smaller, a current development trendof electronic products is that their functions should be better andtheir shape should be thinner and smaller, the miniature camera lenswith good imaging quality has become a mainstream in the market. Inorder to obtain better imaging quality, the lens that is traditionallyequipped in a mobile phone camera adopts a three-piece or a four-piecelens structure. Besides, with a development of technologies and anincrease of diverse demands of users, and under a circumstance that apixel area of the photosensitive device is shrinking and a requirementof the system for the imaging quality is improving constantly, afive-piece, a six-piece and a seven-piece lens structure graduallyappear in a lens design. There is an urgent need for ultra-thinwide-angle camera lenses which have good optical characteristics andfully corrected chromatic aberration.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

To make objectives, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, many technicaldetails in the embodiments of the present disclosure are provided tomake readers better understand the present disclosure. However, evenwithout these technical details and any changes and modifications basedon the following embodiments, technical solutions required to beprotected by the present disclosure can be implemented.

Embodiment 1

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 shows the camera optical lens 10 inEmbodiment 1 of the present disclosure, and the camera optical lens 10includes six lenses. Specifically, the camera optical lens 10 includesfrom an object side to an image side in sequence: an aperture S1, afirst lens L1, a second lens L2, a third lens L3, a fourth lens L4, afifth lens L5 and a sixth lens L6. An optical element such as an opticalfilter GF can be arranged between the sixth lens L6 and an image surfaceSi.

The first lens L1, the second lens L2, the third lens L3, the fourthlens L4, the fifth lens L5, and the sixth lens L6 are made of plasticmaterial.

Here, a focal length of the first lens is defined as f1, a focal lengthof the second lens is defined as f2. The camera optical lens 10satisfies the following condition: 1.50≤f1/f2≤5.00, which specifies aratio of the focal length f1 of the first lens L1 and a focal length f2of the second lens L2, to effectively reduce a sensitivity of the cameraoptical lens for imaging and further improve imaging quality.

A curvature radius of an object-side surface of the second lens L2 isdefined as R3, a curvature radius of an image-side surface of the secondlens L2 is defined as R4. The camera optical lens 10 satisfies thefollowing condition: −10.00≤R3/R4≤−3.00, which specifies a shape of thesecond lens L2. When the value is within this range, with a developmenttowards ultra-thin and wide-angle lenses, it is beneficial for solving aproblem of an on-axis chromatic aberration. Preferably, the followingcondition shall be satisfied: −9.99≤R3/R4≤−3.05.

A total optical length from an object-side surface of the first lens L1to the image surface Si of the camera optical lens along an optical axisis defined as TTL.

In the present disclosure, when the focal length f1 of the first lensL1, the focal length f2 of the second lens L2, the curvature radius R3of the object-side surface of the second lens L2, the curvature radiusR4 of the image-side surface of the second lens L2 satisfy the aboveconditions, the camera optical lens 10 has an advantage of highperformance and satisfies a design requirement for a low TTL.

In this embodiment, the object-side surface of the first lens L1 isconvex in a paraxial region, an image-side surface of the first lens L1is concave in the paraxial region, and the first lens L1 has a positiverefractive power.

Herein, a focal length of the camera optical lens 10 is defined as f.The camera optical lens 10 satisfies the following condition:2.06≤f1/f≤14.48, which specifies a ratio of the focal length of thefirst lens L1 and the focal length of the camera optical lens 10. Whenthe value is within this range, the first has an appropriate positiverefractive power, which is beneficial for correcting an aberration ofthe camera optical lens 10 and the development towards ultra-thin andwide-angle lenses. Preferably, the following condition shall besatisfied: 3.29≤f1/f≤11.58.

A curvature radius of the object-side surface of the first lens L1 isdefined as R1 and a curvature radius of the image-side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 satisfiessatisfy the following condition: −473.25≤(R1+R2)/(R1−R2)≤−9.04, whichreasonably controls a shape of the first lens, so that the first lensmay effectively correct a spherical aberration of the camera opticallens 10. Preferably, the following condition shall be satisfied:−295.78≤(R1+R2)/(R1−R2)≤−11.31.

An on-axis thickness of the first lens L1 is defined as d1, whichsatisfies the following condition: 0.05≤d1/TTL≤0.16. When the conditionis satisfied, it is beneficial for realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.08≤d1/TTL≤0.13.

In this embodiment, an object-side surface of the second lens L2 isconvex in the paraxial region, an image-side surface of the second lensL2 is convex in the paraxial region and the second lens L2 has apositive refractive power.

The camera optical lens 10 satisfies the following condition:0.96≤f2/f≤4.06. When the condition is satisfied, the positive refractivepower of the second lens L2 is controlled within a reasonable range,which is beneficial for correcting an aberration of the camera opticallens. Preferably, the following condition shall be satisfied:1.54≤f2/f≤3.25.

A curvature radius of the object-side surface of the second lens L2 isdefined as R3 and a curvature radius of the image-side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 satisfiesthe following condition: 0.26≤(R3+R4)/(R3−R4)≤1.23, which specifies ashape of the second lens L2. When the value is within this range, with adevelopment towards ultra-thin and wide-angle lenses, it is beneficialfor solving a problem of an on-axis aberration. Preferably, thefollowing condition shall be satisfied: 0.41≤(R3+R4)/(R3−R4)≤0.98.

An on-axis thickness of the second lens L2 is defined as d3, whichsatisfies the following condition: 0.02≤d3/TTL≤0.06. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.03≤d3/TTL≤0.05.

In this embodiment, an object-side surface of the third lens L3 isconvex in the paraxial region, an image-side surface of the third lensL3 is concave in the paraxial region, and the third lens L3 has anegative refractive power.

A focal length f3 of the third lens L3 satisfy the following condition:−4.45≤f3/f≤−1.31. An appropriate distribution of the refractive powerleads to better imaging quality and lower sensitivity. Preferably, thefollowing condition shall be satisfied: −2.78≤f3/f≤−1.63.

A curvature radius of the object-side surface of the third lens L3 isdefined as R5 and a curvature radius of the image-side surface of thethird lens L3 is defined as R6. The camera optical lens 10 satisfies thefollowing condition: 0.84≤(R5+R6)/(R5−R6)≤2.81. A shape of the thirdlens L3 is effectively controlled, thereby facilitating shaping of thethird lens L3 and avoiding bad shaping and generation of stress due toan overly large surface curvature of the third lens L3. Preferably, thefollowing condition shall be satisfied: 1.35≤(R5+R6)/(R5−R6)≤2.25.

An on-axis thickness d5 of the third lens L3 satisfies the followingcondition: 0.04≤d5/TTL≤0.12. When the condition is satisfied, it isbeneficial for the realization of ultra-thin lenses. Preferably, thefollowing condition shall be satisfied: 0.06≤d5/TTL≤0.10.

In this embodiment, an object-side surface of the fourth lens L4 isconcave in the paraxial region and an image-side surface of the fourthlens L4 is convex in the paraxial region, and the fourth lens L4 has apositive refractive power.

A focal length f4 of the fourth lens L4 satisfies the followingcondition: 0.45≤f4/f≤1.38. When the condition is satisfied, theappropriate distribution of the refractive power makes it possible thatthe camera optical lens 10 has the better imaging quality and lowersensitivity. Preferably, the following condition shall be satisfied:0.72≤f4/f≤1.10.

A curvature radius of the object-side surface of the fourth lens L4 isdefined as R7 and a curvature radius of the image-side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 satisfiesthe following condition: 0.72≤(R7+R8)/(R7−R8)≤2.28, which specifies ashape of the fourth lens L4. When the value is within this range, withthe development towards ultra-thin and wide-angle lens, it is beneficialfor solving a problem like an off-axis aberration. Preferably, thefollowing condition shall be satisfied: 1.15≤(R7+R8)/(R7−R8)≤1.82.

An on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens satisfies the following condition: 0.04≤d7/TTL≤0.16. Whenthe condition is satisfied, it is beneficial for the realization ofultra-thin lenses. Preferably, the following condition shall besatisfied: 0.07≤d7/TTL≤0.13.

In this embodiment, an object-side surface of the fifth lens L5 isconvex in the paraxial region and an image-side surface of the fifthlens L5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

A focal length of the camera optical lens 10 is defined as f and a focallength of the fifth lens L5 is defined as f5. The camera optical lens 10satisfies the following condition: 1.65≤f5/f≤5.88, which can effectivelymake a light angle of the camera lens gentle and reduce tolerancesensitivity. Preferably, the following condition shall be satisfied:2.63≤f5/f≤4.70.

A curvature radius of an object-side surface of the fifth lens L5 isdefined as R9 and a curvature radius of an image-side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 satisfiesthe following condition: 0.11≤(R9+R10)/(R9−R10)≤0.44, which specifies ashape of the fifth lens L5. When the value is within this range, withthe development towards ultra-thin and wide-angle lenses, it isbeneficial for solving the problem like the off-axis aberration.Preferably, the following condition shall be satisfied:0.18≤(R9+R10)/(R9−R10)≤0.35.

An on-axis thickness d9 of the fifth lens L5 satisfies the followingcondition: 0.06≤d9/TTL≤0.19. When the condition is satisfied, it isbeneficial for the realization of ultra-thin lenses. Preferably, thefollowing condition shall be satisfied: 0.10≤d9/TTL≤0.15.

In this embodiment, an object-side surface of the sixth lens L6 isconvex in the paraxial region, an image-side surface of the sixth lensL6 is concave in the paraxial region. The sixth lens L6 has a negativerefractive power.

A focal length f6 of the sixth lens L6 satisfies the followingcondition: −2.78≤f6/f≤−0.84. When the condition is satisfied, theappropriate distribution of the refractive power makes it possible thatthe camera optical lens 10 has the better imaging quality and lowersensitivity. Preferably, the following condition shall be satisfied:−1.74≤f6/f≤−1.05.

A curvature radius of the object-side surface of the sixth lens L6 isdefined as R11 and a curvature radius of the image-side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 satisfiesthe following condition: 1.12≤(R11+R12)/(R11−R12)≤3.60, which specifiesa shape of the sixth lens L6. When the value is within this range, withthe development towards ultra-thin and wide-angle lenses, it isbeneficial for solving a problem like the off-axis aberration.Preferably, the following condition shall be satisfied:1.79≤(R11+R12)/(R11−R12)≤2.88.

An on-axis thickness of the sixth lens L6 is defined as d11, whichsatisfies the following condition: 0.04≤d11/TTL≤0.13. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.06≤d11/TTL≤0.10.

In this embodiment, a combined focal length f12 of the first lens andthe second lens satisfies the following condition: 0.88≤f12/f≤2.77. Inthis way, the aberration and distortion of the camera optical lens maybe removed, and a back focal length of the camera optical lens may bereduced, so that miniaturization of the camera optical lens ismaintained. Preferably, the following condition shall be satisfied:1.41≤f12/f≤2.21.

In this embodiment, the TTL of the camera optical lens 10 is less thanor equal to 5.54 mm, which is beneficial for the realization ofultra-thin lenses. Preferably, the TTL of the camera optical lens 10 isless than or equal to 5.29 mm.

In this embodiment, an F number of the camera optical lens 10 is lessthan or equal to 2.06 mm. The camera optical lens 10 has a large Fnumber and a better imaging performance. Preferably, the F number of thecamera optical lens 10 is less than or equal to 2.02 mm.

With such design, the TTL of the camera optical lens 10 can be made asshort as possible, thus the miniaturization characteristics can bemaintained.

In the following, an example will be used to describe the camera opticallens 10 of the present disclosure. Symbols recorded in each example areas follows. A unit of a focal length, an on-axis distance, a curvatureradius, an on-axis thickness, an inflexion point position and an arrestpoint position is mm.

TTL: the total optical length from the object-side surface of the firstlens to the image surface of the camera optical lens along an opticalaxis, with a unit of mm.

Preferably, inflexion points and/or arrest points can also be arrangedon the object-side surface and/or image-side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

Design data of the camera optical lens 10 in Embodiment 1 of the presentdisclosure is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.199 R1 1.753 d1= 0.540 nd1 1.5467 ν1 55.82R2 2.032 d2= 0.089 R3 20.394 d3= 0.210 nd2 1.5467 ν2 55.82 R4 −6.579 d4=0.251 R5 11.736 d5= 0.403 nd3 1.6686 ν3 20.53 R6 3.373 d6= 0.129 R7−9.261 d7= 0.431 nd4 1.7543 ν4 44.94 R8 −1.905 d8= 0.520 R9 18.426 d9=0.635 nd5 1.5467 ν5 55.82 R10 −11.749 d10= 0.275 R11 3.808 d11= 0.418nd6 1.5369 ν6 55.69 R12 1.454 d12= 0.540 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.293

Meanings of the above symbols are as follows.

S1: Aperture;

R: curvature radius of an optical surface, or a central curvature radiusin case of a lens;

R1: curvature radius of the object-side surface of the first lens L1;

R2: curvature radius of the image-side surface of the first lens L1;

R3: curvature radius of the object-side surface of the second lens L2;

R4: curvature radius of the image-side surface of the second lens L2;

R5: curvature radius of the object-side surface of the third lens L3;

R6: curvature radius of the image-side surface of the third lens L3;

R7: curvature radius of the object-side surface of the fourth lens L4;

R8: curvature radius of the image-side surface of the fourth lens L4;

R9: curvature radius of the object-side surface of the fifth lens L5;

R10: curvature radius of the image-side surface of the fifth lens L5;

R11: curvature radius of the object-side surface of the sixth lens L6;

R12: curvature radius of the image-side surface of the sixth lens L6;

R13: curvature radius of an object-side surface of the optical filterGF;

R14: curvature radius of an image-side surface of the optical filter GF;

d: on-axis thickness of the lens or an on-axis distance between thelenses;

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1;

d1: the on-axis thickness of the first lens L1;

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: the on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image-side surface of the sixth lens L6to the object-side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from an image-side surface to an image surface ofthe optical filter GF;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 −1.3100E+01  5.0000E−01 −1.3500E+00  2.6200E+00 −2.6000E+00 R2−5.1500E+00 −2.0100E−01 7.3900E−02 6.8000E−02  4.9300E−01 R3  3.6400E+02−3.2500E−01 3.7000E−01 6.5300E−01 −1.5700E+00 R4 −4.0100E+02 −2.6600E−011.8500E−01 1.3100E+00 −3.5500E+00 R5 −4.0000E+02 −5.0700E−01 1.0200E−012.5700E+00 −1.1900E+01 R6  5.8400E+00 −1.2600E−01 −2.7400E−01 5.5100E−01 −7.9800E−01 R7 −4.0000E+02  7.1800E−02 −8.7500E−02 3.8700E−02  2.4100E−02 R8 −1.9600E+01 −3.1200E−01 6.2000E−01−9.3700E−01   1.0000E+00 R9  9.8200E+01 −3.1000E−02 −7.9400E−03 1.1300E−03  3.1500E−04 R10 −1.3400E+02 −1.0700E−01 4.6400E−02−8.3500E−03  −8.7200E−04 R11 −1.2800E+02 −3.3900E−01 1.9500E−01−5.5100E−02   9.2500E−03 R12 −1.5100E+01 −1.1000E−01 5.2600E−02−1.4000E−02   2.1100E−03 Aspherical surface coefficients A12 A14 A16 A18A20 R1 −5.8800E−01  5.6700E+00 −8.7200E+00  6.9500E+00 −2.4900E+00 R2−1.3800E+00 −5.3700E−01 7.4800E−01 7.0700E−01 −2.9900E−01 R3 −3.9600E+00 2.2400E+01 −3.6300E+01  2.2100E+01 −3.6100E+00 R4 −5.1300E+00 5.2600E+01 −1.1500E+02  1.0700E+02 −3.7700E+01 R5  2.4300E+01−1.4200E+01 −3.2600E+01  5.9600E+01 −2.8300E+01 R6  4.4800E−01 2.5200E−01 −4.8700E−01  2.1200E−01 −1.5700E−02 R7 −2.3000E−02−2.5600E−02 8.8000E−03 1.1800E−02 −4.7500E−03 R8 −5.1100E−01 −8.8500E−031.2300E−01 −4.7800E−02   5.8600E−03 R9  3.0400E−05  4.9900E−051.9500E−05 1.5900E−06 −3.1200E−06 R10  1.4600E−04  8.8400E−05 1.2700E−057.9800E−07 −1.3700E−06 R11 −6.5100E−04 −2.4900E−04 6.8800E−05 1.6600E−06−1.2400E−06 R12 −4.6700E−05 −3.8100E−05 3.6400E−06 2.7900E−07−3.7600E−08

Herein, K is a conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18,A20 are aspheric surface coefficients.

IH: an image heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentdisclosure is not limited to the aspherical polynomial form shown in thecondition (1).

Table 3 and table 4 show design data of the inflexion points and thearrest point of the camera optical lens 10 in Embodiment 1 of thepresent disclosure. Herein, P1R1 and P1R2 represent the object-sidesurface and the image-side surface of the first lens L1, P2R1 and P2R2represent the object-side surface and the image-side surface of thesecond lens L2, P3R1 and P3R2 represent the object-side surface and theimage-side surface of the third lens L3, P4R1 and P4R2 represent theobject-side surface and the image-side surface of the fourth lens L4,P5R1 and P5R2 represent the object-side surface and the image-sidesurface of the fifth lens L5, P6R1 and P6R2 represent the object-sidesurface and the image-side surface of the sixth lens L6. The data in thecolumn named “inflexion point position” are vertical distances from theinflexion points arranged on each lens surface to the optic axis of thecamera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.785 0 0 P1R2 1 0.465 00 P2R1 3 0.125 0.565 0.695 P2R2 2 0.535 0.825 0 P3R1 1 0.125 0 0 P3R2 20.395 1.055 0 P4R1 2 0.315 0.745 0 P4R2 2 0.775 1.065 0 P5R1 3 0.3851.375 1.735 P5R2 1 1.465 0 0 P6R1 2 0.215 1.235 0 P6R2 3 0.445 1.4751.965

TABLE 4 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 0 0 P1R2 1 0.705 0 P2R1 1 0.205 0 P2R2 2 0.685 0.875P3R1 1 0.205 0 P3R2 1 0.645 0 P4R1 0 0 0 P4R2 0 0 0 P5R1 2 0.635 1.615P5R2 1 1.735 0 P6R1 1 0.385 0 P6R2 1 1.115 0

FIG. 2 and FIG. 3 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm, and 656.3 nm passes through the camera optical lens 10 inEmbodiment 1. FIG. 4 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 10 in Embodiment 1. The field curvatureS in FIG. 4 is a field curvature in the sagittal direction, and T is afield curvature in a tangential direction.

The following Table 13 shows various values of Embodiments 1, 2, 3corresponding to the parameters which are already specified in theconditions.

As shown in Table 13, Embodiment 1 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.694 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 82.07°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis aberrations are fully corrected,thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is substantially the same with Embodiment 1, and themeanings of symbols in this embodiment are the same with that ofEmbodiment 1. In the following, only differences are described.

Table 5 and table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0= −0.188 R1 1.889 d1= 0.534 nd1 1.5444 ν1 55.82R2 1.983 d2= 0.086 R3 30.401 d3= 0.210 nd2 1.5444 ν2 55.82 R4 −4.702 d4=0.270 R5 11.214 d5= 0.391 nd3 1.6610 ν3 20.53 R6 3.402 d6= 0.114 R7−10.778 d7= 0.429 nd4 1.7504 ν4 44.94 R8 −1.947 d8= 0.527 R9 18.911 d9=0.625 nd5 1.5444 ν5 55.82 R10 −11.291 d10= 0.262 R11 3.705 d11= 0.421nd6 1.5346 ν6 55.69 R12 1.439 d12= 0.540 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.357

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 −1.0000E+01  4.7900E−01 −1.4100E+00  2.6700E+00 −2.5800E+00 R2−6.0900E+00 −2.0500E−01 6.0500E−02 5.3900E−03  4.1600E−01 R3  4.0000E+02−3.1900E−01 3.6700E−01 6.7800E−01 −1.5700E+00 R4 −4.0200E+02 −2.6700E−011.9700E−01 1.3300E+00 −3.5000E+00 R5 −4.0000E+02 −5.0100E−01 1.0900E−012.5800E+00 −1.1900E+01 R6  5.7500E+00 −1.2300E−01 −2.7300E−01 5.5100E−01 −7.9900E−01 R7 −4.0100E+02  7.1100E−02 −8.8600E−02 3.8300E−02  2.4200E−02 R8 −1.8800E+01 −3.1300E−01 6.2000E−01−9.3700E−01   1.0000E+00 R9  9.6000E+01 −2.6200E−02 −7.8900E−03 1.1300E−03  3.1500E−04 R10 −1.6100E+02 −1.0600E−01 4.6600E−02−8.3100E−03  −8.6500E−04 R11 −7.7800E+01 −3.3500E−01 1.9500E−01−5.5000E−02   9.1700E−03 R12 −1.1300E+01 −1.1400E−01 5.6600E−02−1.4600E−02   2.0600E−03 Aspherical surface coefficients A12 A14 A16 A18A20 R1 −5.5700E−01  5.6400E+00 −8.7900E+00  6.8400E+00 −2.3400E+00 R2−1.2900E+00 −2.5100E−01 9.3700E−01 5.6500E−01 −6.6200E−01 R3 −4.0300E+00 2.2400E+01 −3.6100E+01  2.2400E+01 −4.0200E+00 R4 −5.0200E+00 5.2600E+01 −1.1500E+02  1.0600E+02 −3.6600E+01 R5  2.4300E+01−1.4200E+01 −3.2600E+01  5.9600E+01 −2.8400E+01 R6  4.4700E−01 2.5100E−01 −4.8700E−01  2.1100E−01 −1.5900E−02 R7 −2.2900E−02−2.5600E−02 8.8000E−03 1.1800E−02 −4.7800E−03 R8 −5.1100E−01 −8.8600E−031.2300E−01 −4.7800E−02   5.8600E−03 R9  3.0100E−05  4.9900E−051.9500E−05 1.5600E−06 −3.1500E−06 R10  1.4700E−04  8.8500E−05 1.2600E−057.6800E−07 −1.3800E−06 R11 −6.6700E−04 −2.5100E−04 6.9100E−05 1.8600E−06−1.1900E−06 R12 −3.7700E−05 −3.6700E−05 3.5400E−06 2.6300E−07−3.6600E−08

Table 7 and table 8 show design data of inflexion points and arrestpoints of the camera optical lens 20 lens in Embodiment 2 of the presentdisclosure.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.755 0 0 P1R2 1 0.425 00 P2R1 3 0.095 0.565 0.715 P2R2 2 0.515 0.815 0 P3R1 1 0.125 0 0 P3R2 20.395 1.075 0 P4R1 2 0.315 0.725 0 P4R2 2 0.785 1.055 0 P5R1 3 0.4051.355 1.715 P5R2 1 1.445 0 0 P6R1 2 0.225 1.215 0 P6R2 3 0.475 1.3651.945

TABLE 8 Arrest point Arrest point Arrest point Arrest point numberposition 1 position 2 position 3 P1R1 0 0 0 0 P1R2 1 0.685 0 0 P2R1 10.165 0 0 P2R2 2 0.675 0.875 0 P3R1 1 0.205 0 0 P3R2 2 0.645 1.155 0P4R1 0 0 0 0 P4R2 0 0 0 0 P5R1 3 0.675 1.585 1.785 P5R2 1 1.715 0 0 P6R12 0.405 1.915 0 P6R2 1 2.445 0 0

FIG. 6 and FIG. 7 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm, and 656.3 nm passes through the camera optical lens 20 inEmbodiment 2. FIG. 8 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 20 in Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.694 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 82.29°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is substantially the same with Embodiment 1, the meaningsof symbols in this embodiment are the same with that of Embodiment 1. Inthe following, only differences are described.

Table 9 and table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞ d0= −0.194 R1 1.885 d1= 0.525 nd1 1.5444 ν1 55.82R2 1.901 d2= 0.094 R3 39.102 d3= 0.210 nd2 1.5444 ν2 55.82 R4 −3.911 d4=0.247 R5 12.698 d5= 0.382 nd3 1.6610 ν3 20.53 R6 3.232 d6= 0.081 R7−9.971 d7= 0.542 nd4 1.7504 ν4 44.94 R8 −1.902 d8= 0.513 R9 17.065 d9=0.611 nd5 1.5444 ν5 55.82 R10 −9.355 d10= 0.262 R11 3.019 d11= 0.388 nd61.5346 ν6 55.69 R12 1.244 d12= 0.540 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.432

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical Surface coefficients k A4 A6 A8A10 R1 −6.8900E+00  4.5600E−01 −1.4100E+00  2.6800E+00 −2.5300E+00 R2−7.3100E+00 −1.8400E−01 1.6500E−01 −1.9100E−01   3.7400E−01 R3 4.0000E+02 −2.7900E−01 3.4100E−01 6.6200E−01 −1.6900E+00 R4 −3.2000E+02−2.5200E−01 2.3500E−01 1.3500E+00 −3.5300E+00 R5 −4.0000E+02 −4.7400E−011.5300E−01 2.5400E+00 −1.1900E+01 R6  5.4500E+00 −1.2300E−01−2.5900E−01  5.5200E−01 −8.0000E−01 R7 −4.0000E+02  7.8700E−02−9.3000E−02  3.7900E−02  2.5200E−02 R8 −2.0900E+01 −3.2200E−016.1900E−01 −9.3600E−01   1.0000E+00 R9  8.2700E+01 −2.8800E−02−7.3000E−03  1.2000E−03  3.4300E−04 R10 −1.9400E+02 −9.8000E−024.7700E−02 −8.0400E−03  −7.9600E−04 R11 −3.7700E+01 −3.0400E−011.8300E−01 −5.5200E−02   9.4600E−03 R12 −8.1800E+00 −1.0800E−015.5300E−02 −1.5500E−02   2.2500E−03 Aspherical Surface coefficient A12A14 A16 A18 A20 R1 −5.1300E−01  5.5500E+00 −8.9300E+00  6.8200E+00−2.1000E+00 R2 −1.2500E+00 −3.2000E−02 8.3100E−01 4.3100E−01 −5.5100E−01R3 −4.0200E+00  2.2300E+01 −3.6100E+01  2.2500E+01 −3.9200E+00 R4−5.0400E+00  5.2500E+01 −1.1500E+02  1.0600E+02 −3.6400E+01 R5 2.4400E+01 −1.4200E+01 −3.2600E+01  5.9500E+01 −2.8400E+01 R6 4.4600E−01  2.5100E−01 −4.8700E−01  2.1200E−01 −1.5900E−02 R7−2.2400E−02 −2.5400E−02 8.8200E−03 1.1800E−02 −4.6900E−03 R8 −5.1100E−01−8.6800E−03 1.2300E−01 −4.7800E−02  5.8200E−03 R9  4.2400E−05 5.6800E−05 1.9800E−05 1.2100E−06 −3.7400E−06 R10  1.5700E−04 8.7500E−05 1.1500E−05 4.2600E−07 −1.5200E−06 R11 −4.9600E−04−2.5600E−04 5.6900E−05 1.1900E−06 −8.5000E−07 R12 −4.0000E−05−3.7400E−05 3.8600E−06 1.2100E−07 −2.4500E−08

Table 11 and table 12 show design data of inflexion points and arrestpoints of the camera optical lens 30 lens in Embodiment 3 of the presentdisclosure.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 1 0.785 0 0 P1R2 1 0.455 00 P2R1 1 0.095 0 0 P2R2 2 0.495 0.805 0 P3R1 1 0.125 0 0 P3R2 2 0.4151.065 0 P4R1 2 0.305 0.745 0 P4R2 2 0.805 1.065 0 P5R1 3 0.415 1.3351.685 P5R2 1 1.285 0 0 P6R1 2 0.265 1.235 0 P6R2 1 0.515 0 0

TABLE 12 Arrest point Arrest point Arrest point Arrest point numberposition 1 position 2 position 3 P1R1 0 0 0 0 P1R2 1 0.685 0 0 P2R1 10.155 0 0 P2R2 2 0.655 0.865 0 P3R1 1 0.205 0 0 P3R2 2 0.675 1.145 0P4R1 2 0.675 0.785 0 P4R2 0 0 0 0 P5R1 3 0.685 1.565 1.745 P5R2 1 1.6250 0 P6R1 1 0.495 0 0 P6R2 1 2.005 0 0

FIG. 10 and FIG. 11 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm, and 656.3 nm passes through the camera optical lens 30 inEmbodiment 3. FIG. 12 shows schematic diagrams of a field curvature anda distortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 30 in Embodiment 3.

The following Table 13 shows the values corresponding to the conditionsin this embodiment. Obviously, this embodiment satisfies the variousconditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.6991 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 81.72°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f 3.388 3.387 3.398 f1 13.942 24.400 32.792 f2 9.162 7.496 6.542 f3−7.302 −7.538 −6.666 f4 3.117 3.103 3.044 f5 13.277 13.082 11.191 f6−4.691 −4.703 −4.285 f12 5.970 6.251 5.976 FNO 2.00 2.00 2.00 f1/f2 1.523.26 5.01 R3/R4 −3.10 −6.47 −10.00

Persons of ordinary skill in the art can understand that, the aboveembodiments are specific examples for implementing the presentdisclosure, and during actual application, various changes may be madeto forms and details of the examples without departing from the spiritand scope of the present disclosure.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens and a sixth lens, the second lens hasa positive refractive power, the third lens has a negative refractivepower, the fourth lens has a positive refractive power, an object-sidesurface of the fourth lens is concave in a paraxial region, and animage-side surface of the fourth lens is convex in the paraxial region;wherein the camera optical lens satisfies the following conditions:1.50≤f1/f2≤5.00;−10.00≤R3/R4≤−3.00;0.45≤f4/f≤1.38;0.72≤(R7+R8)/(R7−R8)≤2.28; and0.04≤d7/TTL≤0.16; where f1 denotes a focal length of the first lens; f2denotes a focal length of the second lens; R3 denotes a curvature radiusof an object-side surface of the second lens; R4 denotes a curvatureradius of an image-side surface of the second lens; f denotes afocallength of the camera optical lens; f4 denotes a focal length of thefourth lens; R7 denotes a curvature radius of an object-side surface ofthe fourth lens; R8 denotes a curvature radius of an image-side surfaceof the fourth lens; d7 denotes an on-axis thickness of the fourth lens;and TTL denotes a total optical length from the object-side surface ofthe first lens to an image surface of the camera optical lens along anoptical axis.
 2. The camera optical lens according to claim 1, furthersatisfying the following conditions:−9.99≤R3/R4≤−3.05.
 3. The camera optical lens according to claim 1,wherein the first lens has a positive refractive power, an object-sidesurface of the first lens is convex in a paraxial region, and animage-side surface of the first lens is concave in the paraxial region;wherein the camera optical lens satisfies the following conditions:2.06≤f1/f≤14.48;−473.25≤(R1+R2)/(R1−R2)≤−9.04; and0.05≤d1/TTL≤0.16; where f denotes a focal length of the camera opticallens; R1 denotes a curvature radius of an object-side surface of thefirst lens; R2 denotes a curvature radius of an image-side surface ofthe first lens; d1 denotes an on-axis thickness of the first lens; andTTL denotes a total optical length from the object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.
 4. The camera optical lens according to claim 3, furthersatisfying the following conditions:3.29≤f1/f≤11.58;−295.78≤(R1+R2)/(R1−R2)≤−11.31; and0.08≤d1/TTL≤0.13.
 5. The camera optical lens according to claim 1,wherein an object-side surface of the second lens is convex in aparaxial region, an image-side surface of the second lens is convex inthe paraxial region; wherein the camera optical lens satisfies thefollowing conditions:0.96≤f2/f≤4.06;0.26≤(R3+R4)/(R3−R4)≤1.23; and0.02≤d3/TTL≤0.06; where f denotes a focal length of the camera opticallens; R3 denotes a curvature radius of an object-side surface of thesecond lens; R4 denotes a curvature radius of an image-side surface ofthe second lens; d3 denotes an on-axis thickness of the second lens; andTTL denotes a total optical length from the object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.
 6. The camera optical lens according to claim 5, furthersatisfying the following conditions:1.54≤f2/f≤3.25;0.41≤(R3+R4)/(R3−R4)≤0.98; and0.03≤d3/TTL≤0.05.
 7. The camera optical lens according to claim 1,wherein an object-side surface of the third lens is convex in a paraxialregion, an image-side surface of the third lens is concave in theparaxial region; wherein the camera optical lens satisfies the followingconditions:−4.45≤f3/f≤−1.31;0.84≤(R5+R6)/(R5−A6)≤2.81; and0.04≤d5/TTL≤0.12; where f denotes a focal length of the camera opticallens; f3 denotes a focal length of the third lens; R5 denotes acurvature radius of an object-side surface of the third lens; R6 denotesa curvature radius of an image-side surface of the third lens; d5denotes an on-axis thickness of the third lens; and TTL denotes a totaloptical length from the object-side surface of the first lens to animage surface of the camera optical lens along an optical axis.
 8. Thecamera optical lens according to claim 7, further satisfying thefollowing conditions:−2.78≤f3/f≤−1.63;1.35≤(R5+R6)/(R5−R6)≤2.25; and0.06≤d5/TTL≤0.10.
 9. The camera optical lens according to claim 1,further satisfying the following conditions:0.72≤f4/f≤1.10;1.15≤(R7+R8)/(R7−R8)≤1.82; and0.07≤d7/TTL≤0.13.
 10. The camera optical lens according to claim 1,wherein the fifth lens has a positive refractive power, an object-sidesurface of the fifth lens is convex in a paraxial region, and animage-side surface of the fifth lens is convex in the paraxial region;wherein the camera optical lens satisfies the following conditions:1.65≤f5/f≤5.88;0.11≤(R9+R10)/(R9−R10)≤0.44; and0.06≤d9/TTL≤0.19; where f denotes afocal length of the camera opticallens; f5 denotes a focal length of the fifth lens; R9 denotes acurvature radius of an object-side surface of the fifth lens; R10denotes a curvature radius of an image-side surface of the fifth lens;d9 denotes an on-axis thickness of the fifth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 11.The camera optical lens according to claim 10, further satisfying thefollowing conditions:2.63≤f5/f≤4.70;0.18≤(R9+R10)/(R9−R10)≤0.35; and0.10≤d9/TTL≤0.15.
 12. The camera optical lens according to claim 1,wherein the sixth lens has a negative refractive power, an object-sidesurface of the sixth lens is convex in a paraxial region, and animage-side surface of the sixth lens is concave in the paraxial region;wherein the camera optical lens satisfies the following conditions:−2.78≤f6/f≤−0.84;1.12≤(R11+R12)/(R11−R12)≤3.60; and0.04≤d11/TTL≤0.13; where f denotes afocal length of the camera opticallens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of an object-side surface of the sixth lens; R12denotes a curvature radius of an image-side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 13.The camera optical lens according to claim 12, further satisfying thefollowing conditions:−1.74≤f6/f≤−1.05;1.79≤(R11+R12)/(R11−R12)≤2.88; and0.06≤d11/TTL≤0.10.
 14. The camera optical lens according to claim 1,wherein the camera optical lens satisfies the following condition:0.88≤f12/f≤2.77; where f12 denotes a combined focal length of the firstlens and the second lens; and f denotes a focal length of the cameraoptical lens.
 15. The camera optical lens according to claim 14, furthersatisfying the following condition:1.41≤f12/f≤2.21.
 16. The camera optical lens according to claim 1,wherein a total optical length TTL from an object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis is less than or equal to 5.54 mm.
 17. The camera opticallens according to claim 16, wherein the total optical length TTL of thecamera optical lens is less than or equal to 5.29 mm.
 18. The cameraoptical lens according to claim 1, wherein an F number of the cameraoptical lens is less than or equal to 2.06.
 19. The camera optical lensaccording to claim 18, wherein the F number of the camera optical lensis less than or equal to 2.02.